Here's the only relevant quote I can find in your link to FDR. “If I come out for the anti-lynching bill now, [southern Democrats] will block every bill I ask Congress to pass to keep America from collapsing. I just can’t take the risk.”

That's not racism, it's pragmatism at best, and complicity at worst. Could FDR have done a better job of distributing the numerous gains he acheived for the poor and downtrodden? Did he disproportionally benefit white people over black (no anti-Lynch law), brown (leaving Farmworkers out of his gains for unions) and Asians (the Nisei internment camps.) Yes to all of these questions. But he still did a lot more good for humanity than either of us will ever do.